From 714447f6b4fdf5705802318d2d07ef2a26308c78 Mon Sep 17 00:00:00 2001
From: Asim Biswal <abiswal@berkeley.edu>
Date: Fri, 15 Apr 2022 23:25:36 -0700
Subject: [PATCH] cp rework 2  (#284)

fixing discrepancies between cp and how it works in linux
---
 skylark/cli/cli.py        |  9 ++++++++-
 skylark/cli/cli_helper.py | 31 +++++++++++++++++++++++++------
 2 files changed, 33 insertions(+), 7 deletions(-)

diff --git a/skylark/cli/cli.py b/skylark/cli/cli.py
index 4e006321c..a89513f56 100644
--- a/skylark/cli/cli.py
+++ b/skylark/cli/cli.py
@@ -155,7 +155,14 @@ def cp(
             for i in range(max_instances):
                 topo.add_edge(src_region, i, dst_region, i, num_connections)
 
-        replicate_helper(topo, source_bucket=bucket_src, dest_bucket=bucket_dst, src_key_prefix=path_src, dest_key_prefix=path_dst, reuse_gateways=reuse_gateways)
+        replicate_helper(
+            topo,
+            source_bucket=bucket_src,
+            dest_bucket=bucket_dst,
+            src_key_prefix=path_src,
+            dest_key_prefix=path_dst,
+            reuse_gateways=reuse_gateways,
+        )
     else:
         raise NotImplementedError(f"{provider_src} to {provider_dst} not supported yet")
 
diff --git a/skylark/cli/cli_helper.py b/skylark/cli/cli_helper.py
index 3237864cc..25fed8f36 100644
--- a/skylark/cli/cli_helper.py
+++ b/skylark/cli/cli_helper.py
@@ -12,6 +12,7 @@
 from typing import Dict, List
 from sys import platform
 from typing import Dict, List
+from urllib.parse import ParseResultBytes, parse_qs
 
 
 import boto3
@@ -50,10 +51,24 @@ def is_plausible_local_path(path: str):
 
 def parse_path(path: str):
     if path.startswith("s3://"):
-        bucket_name, key_name = path[5:].split("/", 1)
+        parsed = path[5:].split("/", 1)
+        if len(parsed) == 1:
+            bucket_name, key_name = parsed[0], "/"
+        else:
+            if parsed[1] == "":
+                bucket_name, key_name = parsed[0], "/"
+            else:
+                bucket_name, key_name = parsed[0], parsed[1]
         return "s3", bucket_name, key_name
     elif path.startswith("gs://"):
-        bucket_name, key_name = path[5:].split("/", 1)
+        parsed = path[5:].split("/", 1)
+        if len(parsed) == 1:
+            bucket_name, key_name = parsed[0], "/"
+        else:
+            if parsed[1] == "":
+                bucket_name, key_name = parsed[0], "/"
+            else:
+                bucket_name, key_name = parsed[0], parsed[1]
         return "gs", bucket_name, key_name
     elif (path.startswith("https://") or path.startswith("http://")) and "blob.core.windows.net" in path:
         regex = re.compile(r"https?://([^/]+).blob.core.windows.net/([^/]+)/(.*)")
@@ -228,15 +243,19 @@ def replicate_helper(
         )
     else:
         # make replication job
-        objs = list(ObjectStoreInterface.create(topo.source_region(), source_bucket).list_objects(src_key_prefix))
+        src_objs = list(ObjectStoreInterface.create(topo.source_region(), source_bucket).list_objects(src_key_prefix))
+        dest_is_directory = False
+        if dest_key_prefix.endswith("/"):
+            dest_is_directory = True
+
         job = ReplicationJob(
             source_region=topo.source_region(),
             source_bucket=source_bucket,
             dest_region=topo.sink_region(),
             dest_bucket=dest_bucket,
-            src_objs=[obj.key for obj in objs],
-            dest_objs=[dest_key_prefix + obj.key for obj in objs],
-            obj_sizes={obj.key: obj.size for obj in objs},
+            src_objs=[obj.key for obj in src_objs],
+            dest_objs=[dest_key_prefix + obj.key if dest_is_directory else dest_key_prefix for obj in src_objs],
+            obj_sizes={obj.key: obj.size for obj in src_objs},
         )
 
     rc = ReplicatorClient(